#include <config.h>
#define _BSD_SOURCE /* for mkdtemp, usleep */
-#define _GNU_SOURCE /* for vasprintf, GNU strerror_r */
+#define _GNU_SOURCE /* for vasprintf, GNU strerror_r, strchrnul */
#include <stdio.h>
#include <stdlib.h>
static void error (guestfs_h *g, const char *fs, ...);
static void perrorf (guestfs_h *g, const char *fs, ...);
-static void *safe_malloc (guestfs_h *g, int nbytes);
+static void *safe_malloc (guestfs_h *g, size_t nbytes);
static void *safe_realloc (guestfs_h *g, void *ptr, int nbytes);
static char *safe_strdup (guestfs_h *g, const char *str);
+static void *safe_memdup (guestfs_h *g, void *ptr, size_t size);
static void default_error_cb (guestfs_h *g, void *data, const char *msg);
static void stdout_event (void *data, int watch, int fd, int events);
int verbose;
int autosync;
+ const char *path;
+
/* Callbacks. */
guestfs_abort_cb abort_cb;
guestfs_error_handler_cb error_cb;
str = getenv ("LIBGUESTFS_DEBUG");
g->verbose = str != NULL && strcmp (str, "1") == 0;
+ str = getenv ("LIBGUESTFS_PATH");
+ g->path = str != NULL ? str : GUESTFS_DEFAULT_PATH;
+ /* XXX We should probably make QEMU configurable as well. */
+
/* Start with large serial numbers so they are easy to spot
* inside the protocol.
*/
}
static void *
-safe_malloc (guestfs_h *g, int nbytes)
+safe_malloc (guestfs_h *g, size_t nbytes)
{
void *ptr = malloc (nbytes);
if (!ptr) g->abort_cb ();
return s;
}
+static void *
+safe_memdup (guestfs_h *g, void *ptr, size_t size)
+{
+ void *p = malloc (size);
+ if (!p) g->abort_cb ();
+ memcpy (p, ptr, size);
+ return p;
+}
+
void
guestfs_set_out_of_memory_handler (guestfs_h *g, guestfs_abort_cb cb)
{
return g->error_cb;
}
-void
+int
guestfs_set_verbose (guestfs_h *g, int v)
{
- g->verbose = v;
+ g->verbose = !!v;
+ return 0;
}
int
return g->verbose;
}
-void
+int
guestfs_set_autosync (guestfs_h *g, int a)
{
- g->autosync = a;
+ g->autosync = !!a;
+ return 0;
}
int
return g->autosync;
}
+int
+guestfs_set_path (guestfs_h *g, const char *path)
+{
+ if (path == NULL)
+ g->path = GUESTFS_DEFAULT_PATH;
+ else
+ g->path = path;
+ return 0;
+}
+
+const char *
+guestfs_get_path (guestfs_h *g)
+{
+ return g->path;
+}
+
/* Add a string to the current command line. */
static void
incr_cmdline_size (guestfs_h *g)
return -1;
}
+ if (access (filename, F_OK) == -1) {
+ perrorf (g, "%s", filename);
+ return -1;
+ }
+
snprintf (buf, len, "file=%s", filename);
return guestfs_config (g, "-drive", buf);
return -1;
}
+ if (access (filename, F_OK) == -1) {
+ perrorf (g, "%s", filename);
+ return -1;
+ }
+
return guestfs_config (g, "-cdrom", filename);
}
guestfs_launch (guestfs_h *g)
{
static const char *dir_template = "/tmp/libguestfsXXXXXX";
- int r, i;
+ int r, i, len, pmore;
int wfd[2], rfd[2];
int tries;
- /*const char *qemu = QEMU;*/ /* XXX */
- const char *qemu = "/usr/bin/qemu-system-x86_64";
- const char *kernel = "vmlinuz.fedora-10.x86_64";
- const char *initrd = "initramfs.fedora-10.x86_64.img";
+ const char *kernel_name = "vmlinuz." REPO "." host_cpu;
+ const char *initrd_name = "initramfs." REPO "." host_cpu ".img";
+ char *path, *pelem, *pend;
+ char *kernel = NULL, *initrd = NULL;
char unixsock[256];
struct sockaddr_un addr;
- /* XXX Choose which qemu to run. */
- /* XXX Choose initrd, etc. */
-
/* Configured? */
if (!g->cmdline) {
error (g, "you must call guestfs_add_drive before guestfs_launch");
return -1;
}
+ /* Search g->path for the kernel and initrd. */
+ pelem = path = safe_strdup (g, g->path);
+ do {
+ pend = strchrnul (pelem, ':');
+ pmore = *pend == ':';
+ *pend = '\0';
+ len = pend - pelem;
+
+ /* Empty element or "." means cwd. */
+ if (len == 0 || (len == 1 && *pelem == '.')) {
+ if (g->verbose)
+ fprintf (stderr,
+ "looking for kernel and initrd in current directory\n");
+ if (access (kernel_name, F_OK) == 0 && access (initrd_name, F_OK) == 0) {
+ kernel = safe_strdup (g, kernel_name);
+ initrd = safe_strdup (g, initrd_name);
+ break;
+ }
+ }
+ /* Look at <path>/kernel etc. */
+ else {
+ kernel = safe_malloc (g, len + strlen (kernel_name) + 2);
+ initrd = safe_malloc (g, len + strlen (initrd_name) + 2);
+ sprintf (kernel, "%s/%s", pelem, kernel_name);
+ sprintf (initrd, "%s/%s", pelem, initrd_name);
+
+ if (g->verbose)
+ fprintf (stderr, "looking for %s and %s\n", kernel, initrd);
+
+ if (access (kernel, F_OK) == 0 && access (initrd, F_OK) == 0)
+ break;
+ free (kernel);
+ free (initrd);
+ kernel = initrd = NULL;
+ }
+
+ pelem = pend + 1;
+ } while (pmore);
+
+ free (path);
+
+ if (kernel == NULL || initrd == NULL) {
+ error (g, "cannot find %s or %s on LIBGUESTFS_PATH (current path = %s)",
+ kernel_name, initrd_name, g->path);
+ goto cleanup0;
+ }
+
/* Make the temporary directory containing the socket. */
if (!g->tmpdir) {
g->tmpdir = safe_strdup (g, dir_template);
if (mkdtemp (g->tmpdir) == NULL) {
perrorf (g, "%s: cannot create temporary directory", dir_template);
- return -1;
+ goto cleanup0;
}
}
if (pipe (wfd) == -1 || pipe (rfd) == -1) {
perrorf (g, "pipe");
- return -1;
+ goto cleanup0;
}
r = fork ();
close (wfd[1]);
close (rfd[0]);
close (rfd[1]);
- return -1;
+ goto cleanup0;
}
if (r == 0) { /* Child (qemu). */
/* Set up the full command line. Do this in the subprocess so we
* don't need to worry about cleaning up.
*/
- g->cmdline[0] = (char *) qemu;
+ g->cmdline[0] = (char *) QEMU;
/* Construct the -net channel parameter for qemu. */
snprintf (vmchannel, sizeof vmchannel,
g->cmdline[g->cmdline_size-1] = NULL;
if (g->verbose) {
- fprintf (stderr, "%s", qemu);
+ fprintf (stderr, "%s", QEMU);
for (i = 0; g->cmdline[i]; ++i)
fprintf (stderr, " %s", g->cmdline[i]);
fprintf (stderr, "\n");
setpgid (0, 0);
#endif
- execv (qemu, g->cmdline); /* Run qemu. */
- perror (qemu);
+ execv (QEMU, g->cmdline); /* Run qemu. */
+ perror (QEMU);
_exit (1);
}
g->start_t = 0;
g->stdout_watch = -1;
g->sock_watch = -1;
+
+ cleanup0:
+ free (kernel);
+ free (initrd);
return -1;
}
}
if (g->verbose)
- fprintf (stderr, "sending SIGTERM to process group %d\n", g->pid);
+ fprintf (stderr, "sending SIGTERM to process %d\n", g->pid);
kill (g->pid, SIGTERM);
goto cleanup;
}
+ /* Got the full message, begin processing it. */
+ if (g->verbose) {
+ int i, j;
+
+ for (i = 0; i < g->msg_in_size; i += 16) {
+ printf ("%04x: ", i);
+ for (j = i; j < MIN (i+16, g->msg_in_size); ++j)
+ printf ("%02x ", (unsigned char) g->msg_in[j]);
+ for (; j < i+16; ++j)
+ printf (" ");
+ printf ("|");
+ for (j = i; j < MIN (i+16, g->msg_in_size); ++j)
+ if (isprint (g->msg_in[j]))
+ printf ("%c", g->msg_in[j]);
+ else
+ printf (".");
+ for (; j < i+16; ++j)
+ printf (" ");
+ printf ("|\n");
+ }
+ }
+
/* Not in the expected state. */
if (g->state != BUSY)
error (g, "state %d != BUSY", g->state);
*/
#include "guestfs-actions.c"
+/* Structure-freeing functions. These rely on the fact that the
+ * structure format is identical to the XDR format. See note in
+ * generator.ml.
+ */
+void
+guestfs_free_lvm_pv_list (struct guestfs_lvm_pv_list *x)
+{
+ xdr_free ((xdrproc_t) xdr_guestfs_lvm_int_pv_list, (char *) x);
+ free (x);
+}
+
+void
+guestfs_free_lvm_vg_list (struct guestfs_lvm_vg_list *x)
+{
+ xdr_free ((xdrproc_t) xdr_guestfs_lvm_int_vg_list, (char *) x);
+ free (x);
+}
+
+void
+guestfs_free_lvm_lv_list (struct guestfs_lvm_lv_list *x)
+{
+ xdr_free ((xdrproc_t) xdr_guestfs_lvm_int_lv_list, (char *) x);
+ free (x);
+}
+
/* This is the default main loop implementation, using select(2). */
struct handle_cb_data {
git.annexia.org / libguestfs.git / blobdiff